1) She'll need 40ml more Pickle Juice.
2) Each friend will get 4 litres.
3) 310ml
4)18 litres
(10 elements..........) 2^(10)<span>=<span>1024
</span></span><span>A discrete set with n elements has 2^n subsets. 2^n=1024 implies there are n=10 elements in this set. Any subset with 0 through n-1 elements is a proper subset of the set, as in each of those cases there exists at least one element of the set that is not in the subset, which is the requirement to be a proper subset. Therefore, we have 1023 proper subsets.</span>
A composite number is divisible by other numbers, including 1 and itself.
Opposite of composite is prime, so we need to look for the PRIME number.
2 is a prime number because it is only divisible by 1 and itself(2).
Answer: 2